*{
    margin: 0;
    padding: 0;
}

body{
    /* vh 为viewheight 视口高度 */
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: url(https://wallpapercave.com/wp/wp13347288.jpg);
    background-repeat: no-repeat;
    background-size: cover;
}

.wrapper{
    width: 850px;
    height: 430px;
    border: 1px solid #000;
    display: flex;
}

.speed{
    flex: 1;
    background: white;
    margin: 10px;
    border-radius: 50px;
    overflow: hidden;
    
}
.speed-bar{
    width: 100%;
    height: 16.3%;
    background: linear-gradient(to bottom, rgb(239, 152, 166) 0%, rgb(97, 97, 233) 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    cursor: pointer;
}
